.f {
  display: flex;
}
.if {
  display: inline-flex;
}

.f1 {
  flex: 1;
}

.f2 {
  flex: 2;
}

.f3 {
  flex: 3;
}

.fw-w {
  flex-wrap: wrap;
}

.fw-nw {
  flex-wrap: nowrap;
}

.fd-row{
  flex-direction:row;
}

.fd-col {
  flex-direction: column;
}

.fd-colr {
  flex-direction: column-reverse;
}

.ai-c {
  align-items: center;
}

.ai-fs {
  align-items: flex-start;
}

.ai-fe {
  align-items: flex-end;
}

.ai-s {
  align-items: stretch;
}

.ac-se {
  align-content: space-evenly;
}

.ac-sb {
  align-content: space-between;
}

.as-c {
  align-self: center;
}

.as-fs {
  align-self: flex-start;
}

.as-fe {
  align-self: flex-end;
}

.jc-c {
  justify-content: center;
}

.jc-fs {
  justify-content: flex-start;
}

.jc-fe {
  justify-content: flex-end;
}

.jc-sa {
  justify-content: space-around;
}

.jc-sb {
  justify-content: space-between;
}

.jc-se {
  justify-content: space-evenly;
}

.jc-s {
  justify-content: stretch;
}
